110 



TABLE 99.— CHARACTERISTICS OF SOME FLUORESCENT LAMPS* 



Nominal lamp 



watts t 4 6 



Norn, length t 6" 9" 



Diameter f " |" 



Bulb T-5 T-S 



Lamp amps 8 125 .145 



Lamp volts J .... 36 48 



Dimensions, electrical data 

 15 15 



40 



40 



T-5 

 .16 



57 



13 



21" 



§" 



T-5 



.16 



100 



14 



15" 



11" 



T-12 



.395 



38 



(T-8) (T-12) 



18" 



1 



T-8 



.31 



55 



18" 



11" 



T-12 



.33 



46 



20 



24" 



H" 



T-12 



.36 



59 



25 

 33" 

 IV" 

 T-12 

 .52 

 53 



30 (T-12) (T-17) 



36" 



1 



T-8 



.355 



98 



48" 



11" 



T-12 



.42 



106 



Lumen output and brightness — 4500 white lamps 



Lumens 200 310 545 460 585 555 860 



Lumens/watt 33 39 42 33 39 37 43 



Brightness: 



Footlamberts 2500 2770 2520 1310 1980 1250 1360 



Candles/in. 2 5.5 6.1 5.6 2.9 4.4 2.8 3,0 



1380 

 46 



2120 

 4.7 



2100 

 53 



1610 

 3.6 



4500 white slimline lamps for multiple operation 



Nominal 



length, Dim. 



inches inches Bulb 



42 | T-6 



64 | T-6 



72 1 T-8 



96 1 T-8 



Lamp 

 current, 

 Ma 

 120 

 200 

 300 

 120 

 200 

 300 

 120 

 200 

 300 

 120 

 200 

 300 



Rec. min. 



starting 



voltage 



450 



600 



600 



750 



Footlamberts 

 and 



(candles/in. 2 ) 

 1570(3.5) 

 2090(4.7) 

 2570(5.7) 

 1580(3.5) 

 2170(4.8) 

 2620(5.8) 

 1200(2.7) 

 1700(3.8) 

 2200(4.9) 

 1200(2.7) 

 1700(3.8) 

 2200(4.9) 



60" 



24" 



T-17 



.40 



110 



2100 

 53 



920 

 2.0 



85 

 60" 

 24" 

 T-17 

 1.6 

 57 



4000 

 47 



100 



60" 



24" 



T-17 



1.50 



71 



4000 

 40 



1760 1760 

 3.9 3.9 



Lumen 

 output 

 and lpw 

 990(55) 

 1320(53) 

 1620(49) 

 1570(57) 

 2150(55) 

 2600(57) 

 1590(61) 

 2250(59) 

 2850(56) 

 2100(62) 

 3050(60) 

 3950(57) 



* Data taken from reports by General Electric Lamp Department and from reports by Sylvania Electric 

 Products. t Add auxiliary watts for total. t Nominal length includes the lamp and two standard lamp- 



holders. § Approximate. || See Table 96. 



TABLE 100.— CHARACTERISTICS* OF TYPICAL PHOTOFLASH LAMPS 



* The data given for the light and time characteristics and for the color temperature of the lamps are average 

 values for a large number of lamps. Individual lamps may differ considerably from these averages. Prepared 

 by Adelaide Easley, General Electric Lamp Division. t Milliseconds. $ x 10 s . 1x10 s . 



SMITHSONIAN PHYSICAL TABLES 



